64729813472049 has 16 divisors (see below), whose sum is σ = 94217523379200. Its totient is φ = 39203078558160.

The previous prime is 64729813472041. The next prime is 64729813472101. The reversal of 64729813472049 is 94027431892746.

It is not a de Polignac number, because 64729813472049 - 2³ = 64729813472041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64729813472041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677737149 + ... + 677832650.

It is an arithmetic number, because the mean of its divisors is an integer number (5888595211200).

Almost surely, 2^{64729813472049} is an apocalyptic number.

It is an amenable number.

64729813472049 is a deficient number, since it is larger than the sum of its proper divisors (29487709907151).

64729813472049 is a wasteful number, since it uses less digits than its factorization.

64729813472049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355571260.

The product of its (nonzero) digits is 146313216, while the sum is 66.

The spelling of 64729813472049 in words is "sixty-four trillion, seven hundred twenty-nine billion, eight hundred thirteen million, four hundred seventy-two thousand, forty-nine".